package com.manster.security;

import cn.hutool.json.JSONUtil;
import com.manster.util.Const;
import com.manster.util.JwtUtils;
import com.manster.util.R;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @Author manster
 * @Date 2022/3/14
 **/
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        //以流的形式返回数据
        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = response.getOutputStream();

        //生成jwt，放到请求头
        String jwt = JwtUtils.generateToken(authentication.getName());
        response.setHeader(Const.HEADER, jwt);

        R r = R.success();

        outputStream.write(JSONUtil.toJsonStr(r).getBytes("UTF-8"));

        outputStream.flush();
        outputStream.close();
    }
}
